Like radio hosts, DJs need to have agreeable voices. The last thing someone with a heavy slur, stutter or generally unpleasant tone needs is a microphone, especially at your wedding. Your DJ doesn't need to sound like Ryan Seacrest to get everyone out on the dance floor, but his words shouldn't be hard on the ears. Luckily, a phone call is all takes to know if your disc jockey's tone is pleasant enough for your big day. If you haven't had the time to personally meet with your DJ yet, it's time to pick up the phone and give him a call.